1. The ångström is a unit of length defined to be 0.1 nanometer or 0.0000000001 meter. Write these numbers in scientific notation. 2. In 2017, the net worth of a businessman was $59,000,000. Write this number in scientific notation.
3. The thickness of a science specimen is 3.5 × 10 −3feet. Write this number in standard form. Then write your answer using inches.

Find two rational expressions that have the difference of 2-n/n-4

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

What is the domain and range of each function 1. x (3, 5, 7, 8, 11) y ( 6, 7, 7, 9, 14) 2. x (-3, -1, 2, 5, 7) y (9, 5, 4, -5, -7)